Pressing machine



Aug. 9, 1932. E. DAVIS PRESSING MACHINE (PRESSURE OPERATED BUCK) Filed Jan. 4, 1928 ATTORNEYS ERNEST DAVIS, @IE" SYRACUSE, HEW YQRK, ASSIGBE'GE no THE FRQSL RILT'Z' COMIPANY INC 15 SYEACUSE, NEW YORK, A CGR-ZPORATKUN GE NEW YUE-IZ PEESSHTG MACHINE (IPE%SUYBE QTPEE EEZD E'UCfsb Application filed Ssannary 1-, 1928.. Serial E50. 2%,522.

This invention relates to presses as garment and laundry pressing machines and has for its object, a particularly simple and eficient machine and actuating mechanism therefor whereby the head is movable laterally and vertically into and out of a position opposed to the buck.

lt further has for its object, a particularly simple and eficient compound-motion guiding means for the'head whereby the head is held in its position opposed to the buck by the pressure applied between the jaws in contradistinction to mechanical locking means as for instance, a straightened toggle.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

in describing this invention, reference is had to the accompanying drawing in which like characters designate corresponding parts in all the views.

Figures 1 and 2 are respectively a front elevation and a side elevation of this machine.

Figure 3 is a sectional view through the head and the buck.

Figure 4 is an end elevation of parts seen in Figure 3. v

Figure 5' is an enlarged sectional. view through the means for controlling the application of power to the lower buck.

The invention comprises generally means for supporting and guiding the head in a eneral horizontal or forward and rearwar direction into and out of a position opposed to the'buck so that when pressure is applied up. wardly to the head from the buck, the head can not move upwardly owing to its guiding and supporting means, but is only capable of movement in a direction at nearly a right angle to the direction of the force applied by the buck, that is, a general horizontal di rection. P

1 designates the buck and 2 the head movable horizontally into and out of a position opposed to the buck.

The buck 1 is here shown as an ironing plate, a bellows chamber '3 being substantially coextensive therewith and being mounted upon a bracket or pedestal 4 which in turn is mounted upon a base or frame 5. In a strict sense, the bracket and bellows are part of the buck and the ironing plate an element of the buck structure, but in the interest of brevity, the ironing plate is considered herein as the buck. The base or frame 5 may be mounted upon a suitable table or bench 6.

-l3oth the head and buck are preferably heatforwardly and rearwardly movable swinging or floating press lever 7 disposed horizontally and having bodily movement and which has but a slight tilting movement about its own axis during its forward and rearward movement, a carrier being provided for moving the lever forwardly and rearwardly and mechanism including a link mounted to swing upwardly and forwardly during the forward movement of the head and the carrier and to move in the uppermost nearly horizontal part of its arc of movement when the head is over the buck.

The carrier as here shown comprises a radius link 8 pivoted at 9 to the frame and at 10 to the lever 7 between the ends thereof and in the rear of the head 2, this carrier link being movable into an upright position so that its pivots 9 and 10 are in or nearly in va vertical line when the head 2 is opposed to the buck 1. The arm 11 of the lever in the rear of the pivot 10 preferably extends downwardly and forms one link of a toggle. The link 8 may be curved away from the rear edge of the head and buck to afford additional clearance as shown.

12 is the other or second link which is pivoted at 13 to the frame in the rear of the pivot 9 and at 14 to the downturned rear end of the lever 7. Owing to the radius links 8 and 12, the lever 7 and hence the head 2 have a premg. During dominantly forward and rearward horizontal movement as the upper end of both links swing with a sort of parallel movement in the horizontal uppermost portions of their arcs of movement when and as the head is moving over the buck. As the radius link 12 is shorter than the link 8, the head has a short tilting movement when the press is open as indicated .by the broken lines Figure 2.

A suitable counterbalancing spring'lfi is employed tending to return the parts to theirnormal or open position, this spring being shown as connected to the carrier link 8. Also, a stop 16 is provided for limiting the forward movement of the link 12 before the parts 11,12 come into a dead center line .or a straight line passing through the pivots 13 and 10 although such stop may be omitted.

In operation, after the operator places the article to be pressed on the buck 1, he pulls the head forwardly by means of the handle 17 and holds the head in its forward position until some pressure is applied to the buck 1 and the pressure holds the press from openthe: forward movement of the head 2, the carrier link 8 moves into an approximately upright position but the link 12 and rear arm 11 of the lever 7 stop short of the dead center line passing through the points 13 and 10. The frictional engagement between the jaws 1 and 2 when under pressure prevents any lateral displacement or sliding of one jaw on the other.

The motive fluid for expanding the bellows 3 is preferably compressed air and it is controlled by any suitable valve mechanism.

Thathere shown includes a valve casing 21 having a normally closed intake valve 22 therein and a normally open exhaust valve 23 and a manual means for operating the valves, the casing being connected to a supply pipe 21 and being connected by a pipe 25 to a' passage 26 leading to the bellows chamber 3, the pipe 25 opening into the valve casing 21 between the valves 22, 23. A spring 27 tends to hold the valves in their normal position. The manual means is here illustrated as a push button 28 acting on a lever 29 pivoted at 30 and having an arm 31 thrusting against a lever 32 which in turn thrusts against the stem 34 of the exhaust valve. Obviously. when the push button 28 is depressed, the air will flow from the pipe 24 through the valve casing pipe 25 and passage 26 to the bellows chamber423 and expand the bellows chamber to carry the buck or ironing plate 1 against the head 2.

Means are provided for locking the valves 21 and 22 in their operated or valve open positions, this means being shown as a diaphragm chamber 35 having a diaphragm 36 therein acting upon a sliding stem 37 which acts upon the lever 32, the diaphragm chamber communicating with the valve casing through passage 38. After the push button 28 is actuated, the air will pass from the valve casing 21 through the passage 38 into the diaphragm chamber 35 and actuate the diaphragm to hold the lever 33 in its operated or valve open position and hence, hold the exhaust valve 23 closed and the intake valve 22 open. When the pressure has been held as long as desired, the press is opened b exhausting the air from the diaphragm c amber 35 and hence permitting the valve 22 to close and the exhaust valve -23 to open and letting the air exhaust back from the bellows chamber/through the passage 26, pipe 25, valve casing 23 and out through exhaust pas sage 38.

The means for exhausting the air'from the diaphragm chamber consists of apipe 39 leading from the pressure side of the diaphragm chamber 35to a valve casing 40 having anormally closed exhaust valve 41 therein which is opened-by a handle or lever 42 grouped with the push button 28. The exhaust valve 41 is held against its seat by a spring. Upon opening of the exhaust valve 41, the air from the diaphragm chamber 35 will exhaust through the valve permitting the valves 22, 23 to return to their normal ppsitions under the influence of the spring 2 The valves and mechanisms are carried by a suitable housing 43 mounted in any suitable manner on the base of the machine. When the. air pressure is released from the diaphragm chamber 35,tl1e counterbalancing spring 15 is free to react and return the head to its rearward position, that is, open the press.

The base or frame 5 is a flat bottom legless structure designed to rest on a bench or table in a horizontal position and carry both press jaws in that the buck 1 is mounted on the front end thereof and the head-operating parts 8 and 12 are mounted on the rear end thereof to guide the press head and impart a compound movement thereto in its opening and closing action. The link 8 stands vertically when the press is closed and pulls down or resists upward displacement of the head 2 when jam compression is applied on the work between the head and buck. The frame 5 extending horizontally and rearwardly of the press jaws, is suitable for a bench-type press as shown, but frame legs 6 may extend downwardly therefrom. I

The rear end 11 of the press lever or head carrying member 7 is downturned at 7 to connect with link 12 which may be shorter than link 8 and hence the press lever 7-11 is forcedto tilt or pivot on the fulcrum 10 'thus raising the head 2 vertically at the same nevaero in r element, means for supporting and g ng the upper pressing element comprisforwardly and rearwardly movable cari horizontally disposed press lever pivot- 1 icon its ends to the carrier, the upper pressing element being carried at the forward or said lever, and an upright forwardly hie linlr pivoted at its lower end to the and at its upper end to the rear end d lever, the upper end of the linlr being ie in the highest part of its of when the upper pressing element osed to the lower,

pressing machine comprising and lower pressing elements, one lasported on the frame, the upper press- ,inent being movable forwardly srdly into a position opposed to the pressing element, means for moving pressing element toward the u per one plying pressure to the article on the element, means for supporting ng the upper pressing element comprrs ing a horizontally disposed'hodily movanle press lever carrying the upper pressing element its front end, a carrier link pivoted to and to the lever between the ends lever, and a second carrier pivoted to the frame and to the rear arm of said lever, the links being arranged relatively to he lever so that the upper ends or both carrier links are moving in the uppermost portions of their arcs of movement when the upper pressing element engages th lower pressing element.

3. A pressing machine comprising a frame,

upper and lowerpressing elements, the upper pressing element being movable -forwardly and rearwardly into a position opposed to the lower pressing element, the latter being mounted on the frame, means for moving the lower pressing element toward the upper one for applying pressure to the article on the lower element, means for supporting and guiding the upper pressing element comprising a forwardly and rearwardly movable upright carrier, a horizontally disposed press lever pivoted between its ends to the upright carrier, the upper pressing element being carried at the forward end of said lever, the rear arm of the lever extending downwardly, a link pivoted at one end to the frame and at its other end to the rear end of said lever and movable upwardly and downwardly about the pivot connecting it and the frame and movalole in the uppermost horizontally extending portion of its arc of movement when the upper pressing element engages the lower, and a counterbalancing spring connected to the carrier and the frame.

4, A pressing machine comprising a frame, upper and lower pressing elements, the latter being supported on the frame, the upper pressing element being movable forwardly and rearwardly into a position opposed to the lower pressing element, meanstor moving the lower pressing element toward the upper one for applying pressure to the article on the lower pressing element, means for supporting and guiding the upper pressin element comprising a lever carrying the upper pressing element at its front end, an upright link pivoted to the frame and to the lever between the ends of the lever, the rear arm of the lever extending downwardly to the rear of said link, a second link pivoted to the frame and to the rear oi said lever, links being arranged relatively to lever so that linlr comes into an upright position when tne upper pressing element is opposed to the lower and the rear arm of the lever and the second linlr stops short of a dead center line passing through the pivot connecting the second link to the frame and the pivot connecting the first linlr to said lever when the upper pressing element is opposed to the lower, and a counterbalancing spring connected to one of said links and the frame.

5. A pressing machine comprising a "frame, upper and lower pressing elements, the upper pressing element being movable forwardly and rearwardly into a position opposed to the lower pressing element, means for mov ing the lower pressing element toward the upper one for applying pressure to the article on thelower element, means for supporting and guiding the upper pressing element comprising a torwardly and rearwardly movable uprightcarrier, a horizontal lever pivoted between its ends to the carrier, the upper pressing element being carried at the forward end of said lever, the rear arm of the lever extending downwardly, a link pivoted at one end to the frame and at its other end to the rear end of said lever, and a stop on the frame limiting the upward movement of the link short of astraight line passing through the pivot connecting the carrier and the lever and the pivot connecting the link and the frame.

6. A pressing machine comprising a frame, upper and lower pressing elements, the upper pressing element being movable forwardly and rearwardly into a position opposed to the lower pressing element, means for moving the lower pressing element toward the upper one for applying pressure to the article on the lower element, means for supporting and guiding the upper pressing element comprishas) ing a lever carrying the upper pressing element at its front end, an upright link pivoted to the frame and to the lever between the ends of the lever, the rear arm of the lever extending downwardly to the rear of said link, a second link pivoted to the frame and to the rear arm of said lever, the links being arranged relatively to the lever so that the first link comes into an upright position when the upper pressing element engages the lower and the rear arm of the lever and the second link stops short of a dead center line passingthrough the pivot connecting the second link to the frame and the pivot connecting the first link to said lever when the upper pressing element is opposed to the lower, and a. stop limiting the movement of the second link short of said deadcenter line.

7. A pressing machine comprising a frame, a buck, a head movable forwardly and rearwardly in a general horizontal direction into and out of a position opposed to the buck, means for moving the buck toward the head to apply pressure, means for supporting and guiding the head comprising a movable horizontal press lever carrying the head at its front end, the lever movable bodily forwardly and rearwardly in a general horizontal direction and having a downwardly extending rear arm, links of different lengths pivoted at like ends to the frame and at their other ends to the lever at spaced apart points, the links being disposed in upright position, the longer upright link being pivoted to the hori zontal press lever between its ends and the shorter upright link being pivoted to the downturned rear end of the lever and the pivot points of the longer link coming sub stantially into a vertical line when the head is over the buck.

8. A pressing machine comprising a frame, a'buck, a head movable forwardly and rearwardly in a general horizontal direction into and out of position opposed to the buck, means for moving the buck toward the head to apply pressure, means for supporting and guiding the head comprising a movable lever carrying the head at its front end, the lever being movable forwardly and rearwardly in a general horizontal direction, links disposed in upright position and being of different lengths pivoted at like ends to the frame and at their other ends to the lever atspaced apart points, the longer link being pivoted to the lever between its ends and shorter link to the rear end of the lever, and a returning spring connected to supporting and guiding means tending to return the parts to their open position.

9. In a garment or ironing press comprising a frame adapted to be mounted on a table, coacting jaws carried on the frame, a bodily movable press lever having its front end attached to one jaw, upright radius linkshaving their upper ends pivoted at spaced points on the press lever to the rear of the jaws, one

radius link being longer than and in front of the other whereby a compound motion is imparted to the press lever,- pivots under the press lever on the frame and adjacent the table on which the radius links are swingably mounted, and means to force the jaws together under compression.

10. In a garment or ironing press, coacting press jaws including a head and buck, a horizontally disposed frame on one end of which the buck is mounted, spaced swing links of different lengths disposed to the rear of the buck and having their lower ends pivoted on the rear portion of the horizontal frame, the

shorter swing link being located atthe rear of the long link, a head-carrying member disposed above the frame and extending rearwardly from the head, and a pivotal connection made between the upper end of each swing link and the head-carrying member to impart a compound movement to the press head to carry the head to the buck and away therefrom. I

11. In a garment or ironing press, coacting press jaws including a head and buck, horizontally disposed frame on one end of which the buck is mounted, a long swing link pivoted in the frame to the rear of the buck and adjacent thereto, a shorter swing link pivoted upon the frame to the rear of the buck and remote therefrom, a head-carrying member disposed above the frame and extending rearwardly above the frame, a pivotal connection between the upper end of each swing link and I the head-carrying member to guide and impart a compound movement to the press head, and means to press the aws together to apply compression to the work between the aws.

12. In a garment of ironing press, coacting press jaws including a head and buck, a horizontally disposed frame on one end of which the buck is mounted, a long swing link pivoted in the frame'to the rear of the buck and adjacent thereto, a shorter swing link pivoted upon the frame which pivot is in substantially the same horizontal position as the pivot for the long swing link and. to the rear of and remote from the buck, a head-carrying member extending rearwardly from the head and above the frame when the press is closed, a pivotal connection between the upper end of each swing link and the head-carrying member to guide and impart a compound movement to the press head, and means to press the jaws together to apply compression to the work between the aws.

13. In a garment or ironing press. coacting press jaws including a head and buck, a horizontally disposed frame on one end of which the buck is mounted. a head-carrying member extending rearwardly from the head and above the frame, a first swing link pivoted at one end thereof to the frame adjacent and to the rear of the buck and pivoted at the other end thereof to the head-carrying member adjacent and to the rear of the head, said swing I link being curved substantially away from the jaws to afiord added clearance between the rear edges of the jaws and the link, and a second swing link disposed to the rear of and spaced from the first swing link and having its ends pivoted to the frame and head-carrying member.

14. A garment or ironing press comprising, coacting press jaws including a head and buck, a horizontally disposed frame on the forward end of which the buck is mounted, operating means connected to the head to open and close the press including spaced upright swing links including a short and long link which are disposed to the rear of the head and buck and having their spaced lower ends pivoted on the rear portion of the horizontal frame in substantially the same horizontal plane, a head-carrying member having its front end attached to the head and disposed above the frame and extending rearwardly from the head and having its rear end directed downwardly, a pivotal connection made between the upper end of each upright link and the head-carrying member to guide and impart to the press head a compound opening and closing movement, and the short link being disposed to the rear of the long link and having its upper end pivoted to the downturned rear end of the head-carrying member. In testimony whereof, I have hereunto signed my name, at Syracuse, in the county of Onondaga, and in the State of New York, this 13th day of December, 1927.

V ERNEST DAVIS. 

